ASTM A105 Carbon Steel Flanges Manufacturer

A105 Flange is a pipeline connecting component forged from ASTM A105 carbon steel, specifically designed for medium-to-high pressure applications. The designation “A105” refers to the material standard.

ASTM A105 Carbon Steel Flange Manufacturer Supplier

With decades of forging experience, SSM has established a complete production system covering the entire process from raw material inspection, forging, heat treatment, machining, quality testing, to packaging and shipping.

SSM - Professional Manufacturer of ASTM A105 Carbon Steel Flanges in China

As a leading manufacturer of carbon steel forged flanges, our product line includes forged steel flanges and forgings that comply with international and domestic standards. The company is equipped with advanced production facilities:

Large free forging hammers
Vertical ring rolling machines
630-ton electric screw precision forging production line
1600-ton electric screw robotic automated flange die forging production line
Medium and high-temperature heat treatment furnaces
Gantry/vertical CNC machining centers
Heavy-duty vertical/horizontal CNC machine tools and other precision machining equipment

ASTM A105 Main Production Standards

ASME B16.5 (Pipe Flanges and Flanged Fittings)
ASME B16.47 (Large Diameter Steel Flanges)
MSS SP-44 (Steel Pipeline Flanges)
API 6A (Wellhead and Christmas Tree Equipment)
EN 1092-1 (European Flange Standard)
GB/T 9119 (Chinese National Standard Flanges)

ASTM A105 Material Specifications

A105 Chemical Composition Requirements:

Element	Content (%)	Element	Content (%)
C	≤0.35	Mn	0.60-1.05
P	≤0.035	S	≤0.040
Si	0.10-0.35	Cu	≤0.40
Ni	≤0.40	Cr	≤0.30
Mo	≤0.12	V	≤0.08

A105 Mechanical Properties:

Tensile Strength: ≥485 MPa
Yield Strength: ≥250 MPa
Elongation: ≥22%
Hardness: ≤187 HB

Product Applications

Primary Applications:

Oil & gas transmission systems
Chemical equipment pipeline connections
Power plant boilers & pressure vessels
Water supply & drainage systems
Shipbuilding & offshore engineering

Usage Considerations:

Operating temperature range: -29°C to 425°C
Not recommended for highly corrosive environments
Material toughness must be considered in low-temperature conditions
Ensure clean and flat flange surfaces during installation

One-Stop Forged Flange Provider for All Your Needs

SSM has significant product advantages in manufacturing forged flanges. Whether it’s quality or price, we will meet your needs.

Related Pipeline Products

Carbon Steel Pipeline Connection Products:

Forged fittings (elbows, tees, reducers)
Butt-weld fittings (ASME B16.9/B16.28)
Socket-weld fittings (ASME B16.11)
Threaded fittings (NPT/BSPT)
Pipeline flange matching systems

Custom Services:

Non-standard flange design & manufacturing
Special coatings (galvanizing, epoxy coating, etc.)
Material upgrades (A105N normalization treatment)

SSM Core Advantages

A105 Flanges Manufacturing Advantages:

Full in-house production (from raw materials to finished products)

Annual production capacity: 20,000 tons

Complete size coverage: 0.5″ to 60″

Full pressure rating range: Class 150 to 2500

A105 Flanges Quality Assurance System:

ISO 9001 Quality Management System Certification

PED 2014/68/EU Certification

100% raw material traceability system

Comprehensive NDE testing capabilities (UT/RT/MT/PT)

Service & Cooperation Advantages:

15 years of export experience

Technical support & engineering consulting services

Flexible MOQ policies

Global logistics solutions

Contact SSM now

We provide end-to-end solutions from material selection and product manufacturing to testing and certification, tailored to your project requirements. Please share your technical specifications and needs—our engineering team will customize the optimal product solution for you.

(Note: All data is based on the latest ASME standards. Actual product parameters are subject to factory test reports.)

FAQ

What are the key advantages of choosing SSM's ASTM A105 flanges?

✅ Full-process manufacturing control (from forging to machining)
✅ Strict compliance with ASME, API, EN, and GB standards
✅ 20,000-ton annual capacity with fast lead times
✅ Comprehensive testing (UT/RT/MT/PT) and certifications (ISO 9001, PED)
✅ Custom solutions for non-standard sizes, coatings, and materials

What is the temperature and pressure limit for ASTM A105 flanges?

Temperature range: -29°C to 425°C (For lower temps, consider A350 LF2)
Max pressure: Varies by class (e.g., Class 150 to 2500 per ASME B16.5)
Derating required for temperatures >425°C
Not recommended for highly corrosive fluids (e.g., acids)

Can SSM provide customized flanges or special material upgrades?

Yes! We offer:

Non-standard designs (odd sizes, extra bolt holes, etc.)
Material enhancements: A105N (normalized), galvanizing, epoxy coatings
Special testing: Third-party inspections (SGS, TÜV)
Low-temperature treatments for sub-zero applications